A revisit of PSR J1909$-$3744 with 15-year high-precision timing

Understand

We report on a high-precision timing analysis and an astrophysical study of the binary millisecond pulsar, PSR J1909$-$3744, motivated by the accumulation of data with well improved quality over the past decade.

• Using 15 years of observations with the Nan\c{c}ay Radio Telescope, we achieve a timing precision of approximately 100 ns.
• We verify our timing results by using both broad-band and sub-band template matching methods to create the pulse time-of-arrivals.
• Compared with previous studies, we improve the measurement precision of secular changes in orbital period and projected semi-major axis.